The Deloitte Technology Fast 50 2016 bases rankings on average percentage revenue growth over four years.

ClickandGo.com attributes its rise to organic growth in the Irish market with investment in Travelsmart technology, which gives insights into website user behaviour and enables the company to target users more intelligently.

ClickandGo.com CEO Paul Hackett credits the high level of investment in technology for the company's growth over the past four years - including a 50pc growth compared to last year.

"I'm delighted we were ranked so highly in our first year in the Deloitte Technology Fast50," he said. "We were also the only travel tech company on the shortlist."

The Deloitte Technology Fast 50 Awards took place in Dublin last Friday.